16400067901145 has 8 divisors (see below), whose sum is σ = 19703045408904. Its totient is φ = 13104745035904.

The previous prime is 16400067901141. The next prime is 16400067901157. The reversal of 16400067901145 is 54110976000461.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3683804616976 + 12716263284169 = 1919324^2 + 3565987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16400067901145 - 2² = 16400067901141 is a prime.

It is a super-2 number, since 2×16400067901145² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16400067901096 and 16400067901105.

It is not an unprimeable number, because it can be changed into a prime (16400067901141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1913655914 + ... + 1913664483.

It is an arithmetic number, because the mean of its divisors is an integer number (2462880676113).

Almost surely, 2^{16400067901145} is an apocalyptic number.

It is an amenable number.

16400067901145 is a deficient number, since it is larger than the sum of its proper divisors (3302977507759).

16400067901145 is an equidigital number, since it uses as much as digits as its factorization.

16400067901145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827321259.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 16400067901145 in words is "sixteen trillion, four hundred billion, sixty-seven million, nine hundred one thousand, one hundred forty-five".